California’s pistachio trees may look prolific this year but crack open many of those shells and you’ll find something surprising: nothing. NPR’s The Salthas the story of what’s behind this year’s “ghost crop”—and when (and how) we can expect it back.

Those once-a-century food shortage events are about to get a whole lot more frequent. A new report from the US-UK Taskforce on Extreme Weather looks at what extreme weather events of the future are going to do our food supply and determines that by 2040, we’ll be getting up to three each century.